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   "source": [
    "This notebook was prepared by [Donne Martin](https://github.com/donnemartin). Source and license info is on [GitHub](https://github.com/donnemartin/interactive-coding-challenges)."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Challenge Notebook"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Problem: Assign Cookies.\n",
    "\n",
    "See the [LeetCode](https://leetcode.com/problems/assign-cookies/) problem page.\n",
    "\n",
    "Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. Each child i has a greed factor gi, which is the minimum size of a cookie that the child will be content with; and each cookie j has a size sj. If sj >= gi, we can assign the cookie j to the child i, and the child i will be content. Your goal is to maximize the number of your content children and output the maximum number.\n",
    "\n",
    "Note:\n",
    "You may assume the greed factor is always positive. \n",
    "You cannot assign more than one cookie to one child.\n",
    "\n",
    "Example 1:\n",
    "Input: [1,2,3], [1,1]\n",
    "\n",
    "Output: 1\n",
    "\n",
    "Explanation: You have 3 children and 2 cookies. The greed factors of 3 children are 1, 2, 3. \n",
    "And even though you have 2 cookies, since their size is both 1, you could only make the child whose greed factor is 1 content.\n",
    "You need to output 1.\n",
    "Example 2:\n",
    "Input: [1,2], [1,2,3]\n",
    "\n",
    "Output: 2\n",
    "\n",
    "Explanation: You have 2 children and 3 cookies. The greed factors of 2 children are 1, 2. \n",
    "You have 3 cookies and their sizes are big enough to gratify all of the children, \n",
    "You need to output 2.\n",
    "\n",
    "* [Constraints](#Constraints)\n",
    "* [Test Cases](#Test-Cases)\n",
    "* [Algorithm](#Algorithm)\n",
    "* [Code](#Code)\n",
    "* [Unit Test](#Unit-Test)\n",
    "* [Solution Notebook](#Solution-Notebook)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Constraints\n",
    "\n",
    "* Are the inputs two list(int), one for greed factor and the other for cookie size?\n",
    "    * Yes\n",
    "* Are the inputs are sorted increasing order?\n",
    "    * No\n",
    "* Can we change inputs themselves, or do we need to make a copy?\n",
    "    * You can change them\n",
    "* Is the output an int?\n",
    "    * Yes\n",
    "* Is the greed factor always >= 1?\n",
    "    * Yes\n",
    "* Can we assume the inputs are valid?\n",
    "    * No, check for None\n",
    "* Can we assume this fits memory?\n",
    "    * Yes"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Test Cases\n",
    "\n",
    "<pre>\n",
    "* None input -> TypeError\n",
    "[1, 2, 3], [1, 1] -> 1\n",
    "[1, 2], [1, 2, 3] -> 2\n",
    "[7, 8, 9, 10], [5, 6, 7, 8] -> 2\n",
    "</pre>"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Algorithm\n",
    "\n",
    "Refer to the [Solution Notebook]().  If you are stuck and need a hint, the solution notebook's algorithm discussion might be a good place to start."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Code"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Solution(object):\n",
    "\n",
    "    def find_content_children(self, g, s):\n",
    "        # TODO: Implement me\n",
    "        pass"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Unit Test"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**The following unit test is expected to fail until you solve the challenge.**"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# %load test_assign_cookie.py\n",
    "import unittest\n",
    "\n",
    "\n",
    "class TestAssignCookie(unittest.TestCase):\n",
    "\n",
    "    def test_assign_cookie(self):\n",
    "        solution = Solution()\n",
    "        self.assertRaises(TypeError, solution.find_content_children, None, None)\n",
    "        self.assertEqual(solution.find_content_children([1, 2, 3], \n",
    "                                                    [1, 1]), 1)\n",
    "        self.assertEqual(solution.find_content_children([1, 2], \n",
    "                                                    [1, 2, 3]), 2)\n",
    "        self.assertEqual(solution.find_content_children([7, 8, 9, 10], \n",
    "                                                    [5, 6, 7, 8]), 2)\n",
    "        print('Success: test_find_content_children')\n",
    "\n",
    "\n",
    "def main():\n",
    "    test = TestAssignCookie()\n",
    "    test.test_assign_cookie()\n",
    "\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    main()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Solution Notebook\n",
    "\n",
    "Review the [Solution Notebook]() for a discussion on algorithms and code solutions."
   ]
  }
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